Acetylene lamp



March l] 1924.

S.' G. THOMASSON ACETYLENE LAMP Filed sept. 4, 1925 Si @C Patented lvflar. ll, lll.

SAlUE-L G. TllffASsoN, F JASNVILLE, NDIANA..

ACETYLENE LAMP.

Application filed September 4, 1923.

To all 'whom t may concern.'

Be it known that l, SAMUEL G. THOMAS- soN, citizen of the United States, residing at Jasonville, in the county of Greene and State of Indiana, haveinvented certain new and useful Improvements in Acetylene Lamps, or" which the following is a specification.

This invention relates to certain new and useful improvements in acetylene lamps and has particular reference to devices of this kind especially useful for employment as miners lamps and embodying carbide and water containers, with means for regulating the feed of water to the carbide container.

The primary object of the invention is to provide means whereby the lamp may fur* nish a light when the carbide or water containers are disconnected for replenishing the supply of carbide in the carbide container.

A further Vobject of thev invention is to provide a single burner to which the gas is supplied normally from the upper portion of the carbide container and to which the gas may be supplied from a reserve gas chamber when the water chamber or container is depressed from the carbide container.

`Still another, object of the invention is to attain the above objects by means of a si1nple, durable and practical construction, capable of meeting with all of the requirements for a successful commercial use.

@ther objects will appear as the nature oi the invention is better understood and the saine consists in the novel form, combination and arrangement of parts, hereinafter more fully described, shown in the accompanying drawing and claimed.

1n the drawing, 4wherein like reference characters indicate corresponding parts throughout the several views,

Figure 1 is a view partly in side elevation and partly in vertical section of one `form of acetylene lamp constructed in accordance with the present invention.

Figure 2 is an enlarged perspective view of the burner tip which is preferably employed, and

Figure 3 is a central transverse sectional view of the device shown in FigureZ.

Referring more-in detail to the drawing, the forni of the invention illustrated enibodies a lower container 5 into which the Serial No. 666,791.

carbide is adapted to be placed and the upper end of which is detachably joined as at 6 to the lower end of a second or upper container 7 that is divided into an upper water chamber 8 and a lower reserve gas chamber 9, by means of a horizontal partition 10. The detachable connection at 6, preferably embodies the provision or' a threaded cap upon the lower end of the container ,7, engaging a threaded neclr portion on'the container 5 as shown and suitably made' gas or air tight.

A tube 11 passes centrally through the bottoni of the chamber 9 and the partition 10 'for conveying the water 'from the chamber 8 to the carbide container 5, and the flow of the water from said compartment 8 is controlled by a suitable valve 12 in a well lrnown or any preferred manner. The container 7 is provided with a laterally er:- tending tube 13 in communication with the chamber 9 below the partition 10, and this tube is adapted to removably support a burner tip 111 of a special construction to be later described, the usual reflector 15 being also mounted upon said tube 13 as shown in Figure 1.

rlhe burner tip 14 comprises a hollow cylinder having end walls, each of which is provided with a pair of openings 15, and which cylinder is divided into a pair of: longitudinal passages by means of a longitudinal partition 16 that is arranged between the openings 15 of each pair. An angular outlet pipe 17 is arranged within the chamber 9 and has its upper end in communication with the lower opening 15 in the inner end wall of the burner tip, the lower end of said tube 17 being extended through the bottoni wall oi the chamber 9, so that gas within the upper portion of the carbide container 5 may pass to and through one passage of the burner tip when the containers 5 and 7 are joined.

A. second tube 18 is mounted above the upper portion of the tube 17 and has its outer end in communication with the other opening 15 in the inner end wall of the burner tip above the partition 16 of the latter, and the inner end of this tube 18 is provided with a valve seat adapted to be closed by means of a needle valve 19 that is provided with an operating handle 2O above the top wall of the container 7, and which is provided with a threaded portion engaging a threaded'portion of said top wall as is well known in connection with valves Vof this general type. y

It will thus be seen that gas within the chamber 9 may be allowed to iiow through the tuber18 by opening the valve 19 so as to pass through the other passage of the burner tip 14 when the container 7 is disconnected from the container for renewing or replenshing the supply of carbide in the last named container. Y

The bottom wall of the container 7 forming the bottom of the chamber 9 is provided with a valve seatadapted to be closed `by means ofia valve head21 upon the lower end of a 'stein 22 that has threaded engagement as at 23 with the partition 10 and at 241 with the top wall ol? the container 7, said stem being provided with an operating handle 25V upon the upper end thereof above said top wall. From this construction, it will beV seen that when the valve 25 is open, the gas in the carbide container` 25 may flow into the compartment 9 until the latter is filled, at which time the valve 19 is closed. When the compartment 9 becomes filled with gas, the valve 21 is closed, and a reserve supply of gas is thus maintained. However, upon ezihausting the supply of gas in the carbide container 5, the valve 19 may be opened so as to permit the burner to remain lighted by the reserve supply of gas within the chamber 9 during the time that the carbide container 5 is detached from the container 7 for replenishing the supply oi' carbide in said container 5. In order to insure against passage of gas around the stem 22 from the chamber or'compartment 9, a pair of valve heads 26 and 27 may be respectively provided upon the stem 22 at opposite sides of the partition 10, the valve head 26 being adapted to seat against. the upper'side of said partition when the valve 21 is closed, and the Valve head 27 being adapted to seat against the under side of said partition v10 when the valve 21 is open. The usual removable filling opening' closure cap 28 is provided for facilitating the replenishment ofwater within the compartment 8 and the container 7 may be provided with the usual supporting hook 29.

A As the construction and operation 'of the device have been fully dealt with above, it isY believed that the construction and operation as well as the advantages of the invention will be readily appreciated by those skilled in the art. Minor changes may be made without departing from the spirit and scope of the invention as claimed.

What I claim as new is:

1. In an acetylene lamp of the character described, anupper container Vdivided into an upper water compartment and a lower reserve gas supply chamber by means of a horizontal partition,a carbi'decontainer detachably joined to the lower end of said first named container, Vmeans for manually vcontrolling the supply of water toV thecarbide container from said water chamber, a two passage burner ,tip supported byl the firstV named container, means for establishing communication between one passage of the burner and the carbide container when said containers are joined, means forV permitting the flow of gas from the carbide chamber or container to the reserve gas supply chamber at will, and manually operable means'for Y controlling the supply of Ygas to theother' operable to prevent low of gas to the burner from said reserve gas lsupply chamber, said.

last named means being operable to permit flow of gas from the reserve gas supply chamber to the other passage of said burner when the containers are disconnectedrfor replenislumentV of the supply ofjcarbidein said carbide container.

In testimony whereof I allixrmy signature.

SAMUEL G. THOMASSON. 

